Means for applying automatic air-brakes in emergencies.



"0 662,360. Patented uovizo, I900;

'J. F. HUTCHISSUN. v MEANS FOR APPLYING AUTUM'ATlG AIR BRAKES IN EMERGENCIES.

(Application md Jun 21, 1900.

(No Moldal.)

I UNITED STATES JAMES F. HUTOHISSON,

FFICE. r

PATET OF MOBILE, ALABAMA.

SPECIFICATION forming part of Letters Patent No. 662,360, dated November 20, 1900. Application filed June 21,1900. Serial No. 21,050. (No model.)

To all whom it may concern:

Be it known that I, JAMES F. HUTOHISSON,a

. citizen of the United States, residing at Mobile,

in the county of Mobile and State of Alabama, have invented certain new and useful Improvements in Means for Applying Automatic Air-Brakes in Emergencies, of which the following is a specification.

The object of my invention is the provision of means whereby when a locomotive-engine or railway-coach is derailed orwhen any obstruction is present upon the tracksuch, for example, as a brake beam or coupler which has become detached and fallenthe automatic air-brake will be immediately applied throughout the train.

With this end in view my invention consists, first, in a rod or bar suspended from the locomotive or from a car-truck and so combined with other mechanism that when displaced from its normal position by any means whatever a passage will be opened from the air-brake train-pipe to the atmosphere.

Further, it consists in the combination, with the train-pipe,of pipes supported by the truck or locomotive and having valves, one or more of which is adapted to be operated by any obstacle which may come in contact with a rod or bar supported by the lever-arms of the said valves.

Finally, it consists in certain novelties of construction and combinations of parts hereinafter set forth, and specified in the claims.

The accompanying drawings illustrate an example of the physical embodiment of my invention constructed and arranged according to the best mode I have so far devised for the application of the principle.

Figure 1 shows a part of a car-truck frame,

in section, a car-axle and wheels and rails in dottted lines, and the several parts of my device for applying the brakes arranged in their proper relative positions in combination with the train-pipe and car-truck. Fig. 2 is an enlarged view of one of the valves and a leverarm. Fig. 3 is a section of Fig. 2 taken on line 3 3 and indicating by dotted lines the positions which can be taken by the lever-arm when moved. Fig. 4 is a face view of a leverarm, showing the slot at the end.

Referring to the several figures of the draw- .of a truck-frame. and 4- 4 are the safety-beams shown in secings, the numeral 1 designates the wheels and axle of a car-truck. 2 2 are the wheel-pieces 3 is one of the transoms,

tion, the said section being taken between the axles of two pairs of wheels.

The numeral 5 designates the train-pipe of the well-known automatic brake.

6 is an angle-union; 7, a valve, in practice located in any convenient position; 8, a flexible hose, and 9 an angle-union to which one end of the hose is secured.

1O 10 are pipes, in this case secured to the truck-transom and the safety-beams by clips, the ends of the pipes extending downwardly from the truck-frame in perpendicular directions, as shown.

11 11 are valves attached to the free ends of the pipes 10 10 by threaded unions.

1212 are holes through the shells of the valves, the said holes in each valve being diametrically opposite each to the other.

13 is the core of the valve; 14:, a groove made in the surface of the core in length somewhat less than the diameter of the core; 15, the angular stem ofthe core, and 16 a perforated nut which passes over the stem and engages the shell, securing the core in place.

17 17 are lever-arms.

18 18 are slots in the free ends of the arms; l9 19, holes in the ends of the arms in line with the slots; 20 20, angular holes in the arms which receive the angular stems, and 21 21 bolts which fasten the arms to the stems.

22 is a rod or bar of a length equal to or greater than the width of the track measured over the rails.

23 23 are the upwardly-curved ends of the rod or bar, located approximately two inches from the rails when the springs of the truck are compressed, and 24E 24: are set-screws by which the rod or bar is held and adjusted within the slots in the ends of the lever-arms.

The modus operandi of the device is as follows: Should the locomotive or car truck become derailed or should any obstacle or obstruction be present on the track, the rod or bar will engage a rail or the said obstacle and be displaced from its normalposition and rotate a lever-arm or both arms and open a passage by way of a hole or holes 12 to the atmosphere. The release of air from the trainpipe immediately applies the brakes throughout the entire train.

It will be observed that I have made provision for rendering the device operative in whichever direction the train may be moving by providing holes in the shell of each valve on opposite sides thereof, and, further, that I have bent the body of the rod or bar downwardly, so that it will lie near the road-bed and engage any obstacle large enough to interfere with any of the truck attachments.

From the foregoing it is obvious that I have provided simple and effective means for at taining'the end set forth as the object of my invention.

While I have illustrated only one example of the physical embodiment of myinvention, I do not thereby intend to exclude from the scope of my claims other examples and other modes of applying the principle, inasmuch as changes and modifications may be introduced at will without constituting a substantial departure.

What I claim is- 1. Means for applying automatic air-brakes in emergencies, consisting of a train-pipe; a rod or bar located adjacent the rails and roadbed; a valve having a core with a groove and a shell with holes through the same on opposite sides communicating directly with the atmosphere; a lever-arm for the valve supporting the said rod or bar; a downwardlyextending pipe to the end of which the valve is secured and with which it is in communication by a passage; and means joining the said downwardly extending pipe and the train-pipe, whereby when the rod engages the rail or track the lever-arm will be moved through the arc of a circle and the valve opened.

2. Means for applying automatic air-brakes in emergencies, consisting of a train-pipe; a rod orbar located adjacent the rails and roadbed; two valves; two lever-arms supporting the rod or bar; two downwardly-extending pipes; and a flexible hose or pipe uniting the two downwardly-extending pipes and the train-pipe.

3. The combination with a device, constructed and operating substantially as set forth; of down wardly-extending pipes having valves with lever-arms; and a rod or bar located adjacent the rails and road-bed and having upwardly-curved ends, 23, 23; said rod supported by the lever-arms.

4. The combination with a device, constructed and operating substantially as set forth, of a valve having a shell provided with holes, l2, l2; agrooved core; and a lever-arm; said shell having an opening communicating with the grooved core, and said grooved core normally closing the holes 12, 12 when the lever-arm is in a vertical position.

'5. The combination with a device, con structed and operating substantially as set forth, of two valves having shells each provided with holes, 12, 12; a grooved core, and a lever-arm; the said lever-arms support-ing.

a rod the ends of which extend over the rails at eachend.

6. The combination with a device, constructedand operating substantially as set forth, of two valves having shells provided with holes on opposite sides, grooved cores, and lever-arms; and said lever-arms having slot-s within which is located a rod or bar.

7. The combination with a device, constructed and operating substantially as set forth, of two valves; two slotted lever-arms; a bar supported by the lever-arms; two pipes; and flexible means uniting the said pipes and the train-pipe.

8. The combination with the train-pipe, of a flexible hose or pipe, 8; pipes, 10,10; valves, 11, 11; lever-arms, 17, 17; and a rod or bar, 22; said bar extending from rail to rail and adapted when engaging the track or a rail to rock the lever-arms and vent the train-pipe.

9. The combination with a device, constructed and operating as set forth, of valves having slotted lever-arms; a rod supported in the slots; and means for adjusting the rod JAMES F. HUTOHISSON.

Witnesses:

WM. HALL, JAs. R. ILLICH. 

